Steffen Mueller wrote: > > Tom Christiansen wrote: > [...] > > > The price of that consideration would be to give the Mathematicians > > blank looks on *their* faces for a very long time instead. Certainly, > > they'll be quick to tell you there are just as many whole numbers > > as naturals. So they won't know what you mean by equal up there. > [...] > > Unless I'm very wrong, there are more whole numbers than natural > numbers. An induction should prove that there are twice as many.
Actually it is easy to do a mapping that is one to one and onto, between them so in that sense there is the same number of numbers in them. /Stefan
